LUXPOWERTEK 7.6K Hybrid Inverter User Manual
- June 5, 2024
- LUXPOWERTEK
Table of Contents
7.6K Hybrid Inverter
Version:EN-UM-1.0-01
USER MANUAL
HYBRID INVERTER 7.6K/8K/9K/10K/11K/12K
CONTENTS
About This Manual
01
4 Operation Guide
21
1 Safety
01
4.1
Operation Mode
21
1.1 Safety Instruction
2 Brief Introduction
2.1 System Solution
3 Installation
01
4.2 LCD settings
21
03
4.2.1 Information Searching
21
4.2.2 Settings Guidance
23
03
4.3 Monitor System
27
04
4.5 Parallel System Setup Guidance
27
3.1 Packaging List & Storing 3.2 Select Location 3.3 Install the Inverter 3.4
Connection
3.4.1 Connection Overview
3.4.2 PV Connection 3.4.3 Battery Connection
04
5 Start-up and shut down the inverter
30
04
5.1
Start up the inverter
30
06
5.2 Shut down the inverter
30
07
07
6 Troubleshooting & Maintenance
30
08
6.1
Troubleshooting
30
09
6.1.1 Introduction to LED Displays
30
3.4.4 Communication Connection
10
6.1.2 Maintenance
30
3.4.5 Grid/UPS Connection
12
6.1.3 Troubleshooting Based On LCD Displays
31
3.4.5.1 240V Single-phase Connection
13
7 Fan replace
34
3.4.5.2 240V/208V Split phase Connection
13
3.4.6 Work with Gen set
14
3.4.7 European model wiring diagram
15
3.4.8 Meter and CT Connection
17
3.4.8.1 Connect the Meter
18
3.4.8.2 Connect the CT
19
3.4.8.3 DRMs Connection
19
3.4.8.4 Balancing Resistor Configuration – SW1
20
3.4.8.5 Wireless Communication Module Connection
20
1. Safety
1.1 Safety Instruction
General Safety Instructions
The inverter has been designed and tested strictly according to international
safety regulations. Read all safety instructions carefully prior to any work
and observe them at all times when working on or with the inverter. The
operator must be qualified personnel and the installation must be capable with
relevant national or international standards or regulations. Incorrect
operation or work may cause:
– injury or death to the operator or a third party; or – damage to the
inverter and other properties belonging to the operator or a third party.
Important Safety Notifications
There are many safety issues need to be carefully notified before, during and
after the installation, and also in future operation and maintenance,
following is important safety notifications to operator, owner and user of
this product in appropriate usage.
Dangers of High Voltages and Large Current
Beware of high PV voltage. Please turn-off the DC switch of PV Panel output
before and during the installation to avoid electric shock. Beware of high
grid voltage. Please turn-off the AC switch of grid connection before and
during the installation to avoid electric shock. Beware of large current of
the battery output. Please turn-off the battery module before and during the
installation to avoid electric shock. Do not open the inverter when it’s
working to avoid electric shock and damages from live voltage and current from
the system. Do not operate the inverter when it’s working, only the LCD and
buttons can be touched in limited cases by qualified personnel, other parts of
the inverter can be touched when the inverter is under a safe state(e.g. fully
shut-down). Do not connect or disconnect any connections (PV, battery, grid,
communication etc.) of the inverter when it’s working. Make sure the inverter
is well grounding, an operator should make sure itself is good protected by
reasonable and professional insulation measurements (e.g. personal protective
equipment (PPE)). Inspect relevant existed wiring on-site of the installation
is under good condition before installation, operation or maintenance. Inspect
the connections are good between inverter and PV, battery and grid during
installation to prevent damages or injuries caused by bad connections.
01
Avoid misoperation and Inappropriate Usage
All the work of this product (system design, installation, operation, setting
and configuration, maintenance etc. must be carried out by qualified personnel
as required. All connections must be in accordance with local and national
regulations and standards. Only when permitted by utility grid, the inverter
and system can interconnected with the utility grid. All the warning table or
nameplate on the inverter must be clearly visible and must not be removed,
covered or pasted. The installation should choose a right position and
location as required in this manual with consideration to safety of users’ in
future operation. Please keep the children away from touching or misoperation
the inverter and relevant system. Beware of burning hurt, the inverter and
some parts of the system could be hot when working, please do not touch the
inverter surface or most of the parts when they are working. During inverter
working states, only the LCD and buttons could be touched.
Please carefully read this manual before any work carried out on this
inverter, after the installation, please keep this manual carefully stored and
easy to access at any time. The qualified personnel should have had training
in the installation and commissioning of the electrical system as well as
dealing with hazards, also they should have the knowledge of the manual and
other related documents. As the installer or operator they are required to be
familiar with local regulations and directives.
02
2. Brief Introduction
2.1 System Solution
This product and relevant system is suitable for following system applications
(system diagram): A. Solar and energy storage hybrid system B. Energy storage
system without solar
3. Installation
3.1 Packaging List & Storing
Packaging List
When the packaging is unpacked, the inner components should be the same as
described in below packaging list.
User Manual X1
Communication Port Cover X4
Wi-Fi Module X1
CT X2
RJ45 Terminal X4
C. On-grid solar system without battery (hybrid ready)
D. Off-grid and back-up applications
Reserved Battery&UPS
Interfaces
E. Hybrid system with zero export funtion F. Parallel system for Hybrid
Router
Viewer
Grid
Hybrid Inverter X1
Expansion Screw and Tube X4
Cross Head Screw X6
OT Terminal X2
Battery communication cable
RSD Meter X1
3.2 Select Location
Suggestions and Requirements
a) The wall for mounting should be strong enough to bear the weight of
inverter . b) To ensure the heat dispassion efficiency and inverter lifespan,
do not install the inverter enclosed.
400mm
400mm
400mm
400mm
03
04
3.3 Install the Inverter
The inverter is wall-mounted installed , steps shows below:
Step1. Use the cardboard as the template to mark the position of the 4 holes,
then drill 8 mm holes and make sure the depth of the holes is deeper than
50mm.
c) The structure of the wall where inverter mounted should not be flammable,
or make sure the inverter is not surrounded by flammable or corrosion
materials and is away from the gas.
d) Never install the inverter exposed to directly sunshine, rain and snow.
Please refer to below figure and select a well shaded place or install a shell
to protect the inverter from directly sunshine, rain and snow etc.
Step2. Install the expansion tubes into the holes and tight them, then use the expansion screws (packaged together with the expansion tubes) to install and fix the wall-mounting bracket on the wall.
75
90
05
Step3. Install the inverter on the wall-mounting bracket and lock the inverter using the security screws.
90
90
06
3.4 Connection
3.4.1 Connection Overview
The system connection diagram is as below( for US version):
L2 L1
L1 L2 L1 L2 L1 L2
UPS Load
Please prepare the breakers before connetion, breakers selection recommendation for both DC and AC
Hybrid
12K
9K/10K/11K
7.6K/8K
DC Breaker selection(6 poles)
600V/40A
600V/40A
600V/40A
DC Breaker selection(2 poles)
AC Breaker selection(2 poles) AC Breaker with RCD
UPS Breaker selection(2 poles)
100V/300A
63A/230Vac Type AC,>0.3A
63A/240Vac
100V/300A
50A/230Vac Type AC,>0.3A
50A/230Vac
100V/300A
40A/230Vac Type AC,>0.3A
40A/230Vac
Connection Terminals and Interfaces Overview
DC Switch
PV INPUT
BAT INPUT
WIFI COM
AC OUTPUT
3.4.2 PV Connection
The PV connection of hybrid inverter is the same to traditional on-grid solar
inverter (string inverter).
– Before connection the PV, please use the multi-meter to measure the PV array
voltage to verify if PV array is working normally, if not, please fix the PV
array to normally working states before connection
– When your PV panel ambient temperature could possibly be lower than 0, then
please check the PV array voltage up ceiling and if you are not sure please
ask your system or panel provider for further assistance. As when temperature
is extremely low the PV panel voltage will increase by a certain percentage.
– Turn off or disconnect the PV switch(DC witch). Then keep this switch always
open during the connection
Cable Requirement: Cross-section
4 – 6 mm2
Cable Diameter
2.5-4mm
Minimum Voltage
600V
Assemble the PV connector
a) Strip 6~8mm insulation from the cable end. b) Assemble the cable ends to
crimp contacts. c) Secure the pipe fitting to the enclosure using the nut
provided with the pipe. d) Route the PV input power cable through the conduit
and then fitting of the pipe. e) Connect the PV input power cable to the
terminal block. Connect positive pole(+) of connection
cable to positive pole(+) of PV input terminal block, connect negative pole(-)
of connection cable to negative pole(-)of PV input terminal block. f) Secure
the fitting to the conduit. g) Checks that the cables are connected correctly
and securely. Then take appropriate measures to ensure that the pipe conduit
and fittings are secured reliably, and seal the cable holes.
07
08
Step 1: Strip 6-8mm insulation from the cable end and Assemble the cable ends to crimp contacts.
Step 2: Route the battery power cable through the conduit and then fitting of the pope.
Please pass the positive lead of PV through the AFCI module, and pass the negative lead of PV through the RSD communication magnetic ring first
Step 3: Secure the pipe fitting to the enclosure using the nut provided with
the pipe.
Polarity reverse will damage the inverter! Install a DC isolator between
battery and inverter can avoid potential damages caused by electric arc.
3.4.3 Battery Connection
Cable Requirement:
Model
Cross-section Cable Diameter
5-8K 9-10K
50-60 mm2 60-85 mm2
15-25mm 15-25mm
11-12K
85-100 mm2
15-25mm
Minimum Voltage
600V 600V 600V
3.4.4 Communication Connection
Interface Overview Battery Communication Interface DRM Interface
CT and Meter Communication Interface
Parallel cable communication Interface
09
Temperature Sensor
Serial communication Mains model CAN Matching resistance Dry node
10
Battery Communication Connection
If the battery type is lithium-ion or ternary battery which need communication
between the inverter and battery management system (BMS), the communication
connection must be installed.
RJ45 Terminal Configuration of Battery Communication
Pin 1 2 3 4 5 6 7 8
Pin
1 2 3 4 5 6 7 8
Function Description
BAT 485 B BAT 485 A BAT CAN L BAT CAN H
NC BAT NTC
GND-S
Make the RJ45 terminal based on above introduction of each Pin definition, you could either make RS485 connector or CAN connector based on the best support connection way of your battery packs. For Lead acid battery temperature sensor, please connect signal to Pin6 and Pin8, the other pins are not connected.(External temperature sensor is needed, the sensor is 15K thermistor for typical, or consult Luxpowertek)
3.4.5 US Model Grid/UPS Connection
Cable Requirement:
Cross-section
8 – 10 mm2
Cable Diameter
5-10mm
Minimum Voltage
600V
a) Strip 8~10mm insulation from the cable end. b) Assemble the cable ends to
crimp contacts. c) Secure the pipe fitting to the enclosure using the nut
provided with the pipe. d) Secure the fitting to the conduit. e) Checks that
the cables are connected correctly and securely, then take appropriate
measures
to ensure that the pipe conduit and fittings are secured reliably, and seal
the cable holes.
For Li-ion battery 1. If work with lithium battery , please make sure it is
compatible with the units. Now inverter is compatible with Pylontech, Dyness,
Aoboet, Weco, Murata. Please contact your distributor for updated compatible
list. 2. After battery power cable and communication cable connection, users
need to choose battery brand by LCD. 3.Please remember to connect Master
battery to inverter if you have battery group, and set the Master battery for
the battery group.(Please contact battery manufacture for battery group
setup). For Lead-acid battery 1. The lead acid battery temperature sensor
cable is optional, if required, please request the temperature sensor cable
from your supplier. 2. There are three stages for lead acid battery charge .
For charge part, please set CV voltage and floating voltage. For discharge
part, please set the discharge cut off voltage for on grid and off grid
11
Grid Type Configuration – SW2 By configuring the DIP switch the inverter could
comply with different grid system. Sw2 Safety Standard Configuration Switch
Overview
Note: The DIP switch is composed of five-digit binary number PINs. Each PIN
has two status, when set upward to”ON”, its value turns to”1″, when set
downward, its value turns to “0”. Voltage standards Configuration Guidance
12
Grid type
L
N
Voltage
Sw2 Configuration
240V single phase
L1 N L2
240V split phase
L2 N
208V split phase L1
3.4.5.1 240V Single-phase Connection 240V Grid Connection Mains L is connected
to terminal L1, mains N is connected to terminal L2, and the machine output N
is connected with air switch and mains N; the schematic reference is as shown
in the picture below
EPS Connection Connect the power L line of the important load or equipment to
the UPS port output L1, the N line to the UPS port output L2, and the PE line
to the inverter and other equipment. Schematic reference is as follows.
N L
PE
LN
PE
EPS Connection for Split phase For 240V or 208V loads or equipment, please
connect the power supply L1 and L2 to the UPS output L1 and L2 respectively,
and the PE wire to the inverter and the equipment used. For 120V loads or
equipment, please connect the L line of its power supply to L1 or L2 of the
UPS output, and connect the N line of the equipment power supply to the N of
the UPS output. Schematic reference is as follows.
N L2 L1
PE
L
N
PE
120V
120V
240V
3.4.6 Work with Gen set
This hybrid inverter can work with generator. Users can connect the generator
output to inverter GEN terminal. Please purchase an external control box to
remote turn on/off the generator(which support dry contact function). The
generator will be automatically started when battery cannot discharge or there
is charge request from battery. When battery can discharge and SOC is higher
than AC charge SOC setting, generator will be stoped. Battery will get charged
when the generator is turned on, and the generator is bypassed to take all
loads in UPS terminal.
240V
3.4.5.2 240V/208V Split phase Connection 240V/208V Split phase Grid Connection
The split-phase system applicable to this series of Hybrid products includes
240V mains power with a phase angle difference of 180 degrees and 208V mains
power with a phase angle difference of 120 degrees. For split-phase systems,
please connect L1 to the inverter Grid port L1, L2 to the inverter Grid port
L2, and N to the inverter port N. Schematic reference is as follows.
13
14
N L2 L1 PE
240V
120V
3.4.7 European Model Wiring Diagram
Grid type
Voltage
Sw2 Configuration
L
N
230V single phase
Single-phase wiring
LN
LN
LN
N
EPS OUTPUT GEN
GRID
L
PE
LN
PE
15
LN
LN
LN
EPS OUTPUT
GEN
GRID
N
L
PE
LN
PE
LN
EPS OUTPUT
LN
GEN
LN
GRID
N L PE
16
3.4.8 Meter and CT Connection
In a completed installed on-grid energy storage system, the CT or Meter should
be installed. The CT or Meter should installed in the right position as below
picture
RJ45 Terminal Configuration of Meter/CT Communication
Pin 1 2 3 4 5 6 7 8
Pin Function Description
The communication port for communicate with meter or CT clamp is as below:
L1 L2 L1 L2
/
5/6
Reserved
CTN
CTP
UPS Load
L1 L2 L1 L2
3.4.8.1 Connect the Meter The functional interfaces overview of the meter is
shown in below figure. Now Luxpower only support EASTRON SDM120 and SDM630-
Modbus Modbus model meter.
Step1. Connect the meter in the LN line as below
AC Grid Side
Inverter Side
Step2. Connect the communication cable between inverter and meter, and plug the RJ45 to communication port
UPS Load
17
1
2
Step3. Check the connection. When the meter displays -xxxxW as below figure shows, the hybrid inverter is feeding power to the grid.and when it displays xxxxW, it means the house load is using energy from grid.
18
3.4.8.2 Connect the CT For the CT clamp connection, we need to put the CT clamp in the L cable and the arrow printed on the CT should point to inverter. Now Luxpower support two ratio 1000:1 and 3000:1 CT clamps . For default, the ratio is 1000:1, if you install another CT clamp, please set it in the monitor system or LCD. For the CT clamp cable, users can use the normal net cable to extend the length if the original length is not enough. The longest distance can be 100m.
TO Grid
TO PCS
3.4.8.4 Balancing Resistor Configuration – SW1 By configuring the SW1
balancing resistor configuration switch, you could configure the balancing
resistors of parallel CAN communication. This Function is used for multiple
inverter paralleling operation. Please turn on the DIP in the first and last
inverter in the inverter loop. For more info, please check the parallel
connection part.
3.4.8.5 Wireless Communication Module Connection
3.4.8.3 DRMs Connection
DRMs is short for `inverter demand response modes’, and it is a mandatary
requirements for inverters in Australia
RJ45 Terminal Configuration of DRM
Pin 1 2 3 4 5 6 7 8
Pin Function Description
1
DRM15
2
DRM26
3
DRM37
4
DRM48
5
RefGen
6
DRM0
7
+12V
8
GND-S
DRM Communication Interface Overview
19
In addition to WIFI, there are 4G and GPRS versions
The Wireless Communication Interface Details
Pin 1 & 2 3 & 4
Function Description
20
4. Operation Guide
4.1 Operation Mode
Users can have different settings to satisfy their demands, the working modes
is as below:
Mode
Self usage (Default mode)
Charge priority
Force time
Micro Grid mode(Genset)
Explanation
The priority of the PV energy will be Load >battery> grid, which means the
energy generated by PV will be mainly used by local loads, and rest will be
stored in the battery, excessive power will be feed back into the grid.
The priority of the PV energy will be battery >Load >grid, which means the
energy generated by PV will be used to charge the battery first, and then used
by local loads, excessive power will be feed back into the grid.
User can set the charging and discharging time and priority of energy use
under Force Time Use mode. This is also used to flexibly make use of your
system by customized settings by the users.
When used in pure off grid application, users may connect the Gen set output
to grid input , when battery SOC is low. Inverter will use generator to take
the load and charge the battery.
Related Settings Application Notes
Effective when charge priority and force time charge/discharge are disable
increase the self consumption rate and reduce the energy bil significantly
Charge Priority and related time, SOC
When the load shedding always happens, users need to charge battery first
Force charge/discharge enable and disable, and related time SOC
This mode suits for situation where the price difference of energy is big under Time of Use (To U)
Micro grid enable /disable
Area where is no grid and there is utility
4.2 LCD settings
4.2.1 Information Searching
Refer to below flow chart which shows the information option interfaces and
interconnection. Operator can search target information by following below
directions.
a) Enter into Display Menu Interface Touching the screen to light it up when
it goes into sleeping mode. We can read the current information of the
equipment, including its current status, voltage, power etc.
PV Energy
Today: Total: Discharge Energy
Today: Total: Import
Today: Total: Consumption Today: Total:
21
b) Search History Information Touching the label of the present menu to enter into the equipment’s interface, we can read the real-time information of PV, Battery Grid, UPS etc.
PV Data Battery Data Grid Data UPS Data Other
Vpv1 Vpv2 Vpv3 Epv1_day Epv2_day Epv3_day
Ppv1 Ppv2 Ppv3 Epv1_all Epv2_all Epv3_all
c) Search fault/alarm Information
Touching the warning label under the present menu to enter into the fault
information interface, we can read the current and historical fault & warning
information.
Fault record Alarm record
Error code 1 2 3 4 5 6 7 8 9 10
Error time
Error state
22
d) Search setting information Touching the setting label under the present menu to enter into the equipment’s setting interface, we can read the equipment’s current setting information.
Application setting PV Input
Charge setting
Vpv Start (V)
Discharge setting Reset and Debug Installer setting Device information
Meter or CT Meter Type UPS Voltage UPS Frequency
Set
Set
Com Addr
Set
Set
CT Ratio
Set
Set
4.2.2 Settings Guidance
All setting items can be input or selected by the way of touching, just like
the way of operating a smart phone.
a) Common Setting
Common setting is the regular setting item. We can set the information of
time, communication terminal, start voltage of PV, as well as choosing the
ratio of CT, type of meter, type of battery, batter brand & capacity etc.
1. Notice that the setting range of the RS485 communication address is from
000 to 255, and it’s set to be 001 by default when manufactured. 2. In order
to the correct type of meter, we should confirm if the meter we are going to
install is a single phase meter or a three phase meter while setting the meter
mode.
3. Setting the CT mode: In order to set a correct CT proportion, we need to
inspect the marked proportion on the CT. We don’t need to set the type of CT.
4. Selecting the battery mode: we don’t need to set the battery type and
battery capacity. 5. Selecting the lead-acid battery mode: we need to select
the lead-acid battery capacity according to its real capacity, and don’t need
to choose the battery brand. 6. Selecting the Lithium mode: we need to choose
it based on the real brand, and ignore the setting of lead-acid battery
capacity.
Application setting PV Input
Charge setting
Vpv Start (V)
Discharge setting Reset and Debug Installer setting Device information
Meter or CT Meter Type UPS Voltage UPS Frequency
Set
Set
Com Addr
Set
Set
CT Ratio
Set
Set
b) Application Setting Enter into Application Setting interface:
1. UPS function can continually power the essential house loads in the case
of blackout. We should set the output voltage, Frequency and to enable
seamlessly switch function.
2. The anti-backflow function can prevent energy feed into the grid. Since in
some countries, users can not feed energy into grid, so they are able to
disable energy export function in the LCD, or set power percent which can feed
into grid.
3. Setting the max. input power to prevent input power overload.
4. When connect the generator to inverter AC terminal, users need to enable
mirco grid function so the inverter will use generator to charge battery and
will not export any power by AC terminal. 5. Switching on or off the equipment
to turn it into the standby mode from the quitting of normal status.
Noted: In the case of battery being turned off, we have to make it sure that
the capacity of the UPS port loads should smaller than the capacity of PV
output, and the enable PV grid off function will be normally working.
Application setting Power backup
Charge setting
Seamless switch
Discharge setting Reset and Debug Installer setting
Feed-in Grid Feed-in Power(%) Max. Input power(W) Normal / Standby
Device information
Set PV Grid Off
Set Fast zero export
Set Micro-grid
23
24
c) Charge Setting Setting the battery charging parameters:
1. Setting the charging power & current. 2. Setting the AC charging, we have
three non-overlapping period of time to be set, and the charging power, cut
off soc etc. 3. Setting the equalization voltage, equalization peroid,
equalization time etc.
Application setting Charge setting Discharge setting Reset and Debug Installer setting
Charge power(%) Charge current(A)
AC Charge
Time Range 1
:
Time Range 2
:
Time Range 3
:
Device information
Equalization Voltage(V) Equalization peroid(day)
Set Charge last Set
Set
:
AC Charge power(%)
:
AC Charge SOC(%)
:
Set Equalization time(hour)
d) Discharge Settings
Discharge Setting is used to set the relevant parameters of battery discharge,
including:
1. Setting the output power, output current, and stop the discharging SOC
both in case of having grid and without grid. 2. Setting the force discharging
function, we need to set the discharging time periods (three non -overlapping
period of time can be set),output power, discharge cut-off SOC etc. 3. Setting
the cut-off voltage, start derate voltage, discharge temp low()discharge temp
high()etc.
Application setting Charge setting Discharge setting Reset and Debug Installer setting Device information
Discharge power(%) On-grid EOD(%) Discharge start power(W)
Forced diacharge
Time Range 1
:
Time Range 2
:
Time Range 3
:
Cut-off Voltage(V)
Set Discharge current(A)
Set
Off-grid EOD (%)
Set
Set
Set
:
Forced discharge power(%)
:
Forced discharge SOC(%)
:
Set Start derate Voltage (V)
Set
e) Reset and Debug In case of receiving fault notification from the machine, we can restart the inverter to eliminate the report of abnormal event.
Application setting Restart inverter Reset
Charge setting Discharge setting Reset and Debug Installer setting Device information
FAQ: Why do not discharge? Why do not charge? Why is there no output power from AC terminal? Why is there no output from EPS terminal?
f) Device information
We can set the standby time after the inverter has been powered on, and we can
check the equipment’s factory default information.
Application setting Charge setting Discharge setting Reset and Debug
Standby time (s) Model Serial number Firmware version
Installer setting
Build version
Device information Time
Set
:
:
Set yyyy-mm-dd hr:mi:se
25
26
Parallel line 3 Parallel line 3
4.3 Monitor System
Users can use wifi donlge/WLAN dongle/4G dongle(Avaiblable from 2021 March for
some countries) to monitor the energy storage system, The monitor website is:
server.luxpowertek.com The APP is also available in the google play and apple
APP store(Scan two code bar to download the APP). Please download the
introduction of guidance by website: https://www.luxpowertek.com/download/
Document Reference:
1. Wifi Quick Guidance Quick guidance for setting password for wifi module,
the paper is also available in the wifi box 2.Monitor system setup for
Distributors and Monitor system setup for endusers Monitor system registration
,wifi password setting, and wifi local monitor and setting
3.Lux_Monitor_UI_Introduction Introduction of monitor interface 4.
WebsiteSettingGuidance Introduction of website settings for hybrid inverter
4.4 Parallel system setup guidance
Please note that the parallel model is different from standard model, if users
need to connect the UPS together, they need to buy parallel model from
distributors. For parallel system setup, Step1. Cable connection :the system
connection for single phase paralleling is as below: the system connection for
threephase paralleling is as below:
Inverter 1
PV
AC Input
Parallel line 1
CAN 1 CAN 2 AC Output
BAT
DC
Inverter 2
PV
AC Input
CAN 1
Parallel line 2
CAN 2 AC Output BAT
DC
Inverter 3
PV
AC Input
CAN 1 CAN 2 AC Output
BAT DC
L
AC
Grid Bus-Bar(L,N)
N
PE
L
AC
N
PE
UPS Bus-Bar(L,N)
L
AC
N
PE
L
AC
N
PE
AC Input Grid Bus-Bar(L,N)
PE
Grid
L
AC
N
PE
L
AC
N
PE
AC Output Grid Bus-Bar(L,N)
PE
EPS Load
27
Inverter 1
PV
AC Input
Parallel line 1
CAN 1 CAN 2 AC Output
BAT
DC
Inverter 2
PV
AC Input
Parallel line 2
CAN 1 CAN 2
AC Output
BAT
DC
Inverter 3
PV
AC Input
CAN 1 CAN 2
AC Output
BAT
DC
L
AC
N PE
L
AC
N
PE
UPS Bus-Bar(L,N)
L
AC
N
PE
L
AC
N PE
L
AC
N
PE
L
AC
N PE
Phase L1 Grid or Generater
Phase L1 UPS
Phase L2 Grid or Generater
Phase L2 UPS
Phase L3 Grid or Generater
Phase L3 UPS
Please put the CAN communication PIN to on status for the first and the end inverter
Parallel line(n to 1)
The max parallel quantity is 10, so 2<n<10
4
Parallel line1
4
Parallel line2
4 Parallel line(n-1 to n) 4
No.1
11
1 0
3
No.2
00
1 0
3
No.n-1
00
1 0
3
No.n
11
1 0
3
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Step2. Setup the monitor for the system,add all datalogs in one station. Users
can login the visit the monitor system, Configuration->station->Plant
Management->add datalog to add the datalogs.
Step3. Setup Master and Slave for Parallel system. There should be only one
master in the system. Set one inverter as master and the others as slave
Step4. Enable share battery for the system if the system share one battery
bank, otherwise disable the shared battery function Step5. Set the system as a
parallel group in the monitor system
Please contact your distributor for more detailed guidance for paralleling
system
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5. Start-up and shut down the inverter
5.1 Start up the inverter
Step1. Turn on the battery breaker , then turn on “UPS Output” switch and
check if the inverter works in battery back-up mode.
Step2. Make sure the PV voltage of the strings are higher than 120V ,and check
if the inverter works in PV charge or PV charge back-up mode.
Step3. Make sure step1and 2 above work properly before turning the grid power
or generator, and check if the inverter can go to bypass mode and on-grid mode
normally.
5.2 Shut down the inverter
Danger: Do not disconnect the battery , PV and AC input power under load. If
there is emergency issue , and you have to shut down the inverter ,please
follow the steps as below, Step1. Cut off AC input breaker of inverter side
Step2. Cut off the breaker of load side Step3. Cut off PV breaker and then cut
off the battery ,and waiting for the LCD goes off Step4. Turn off “Power”
switch on the inverter if needed.
6. Troubleshooting & Maintenance
6.1 Troubleshooting
6.1.1 Introduction to LED Displays
LED
Display
Description
Suggestion
Green LED
Yellow LED Red LED
Long light Flashing Long light Long light
Working normally
Firmware upgrading
Wait till upgrading complete
Warning, inverter working Need troubleshooting
Fault, inverter stop work
Need troubleshooting
6.1.2 Maintenance
Every segment of the system need to be check monthly/quarterly/yearly
according to the detailed requirements of each segment.
Inverter Maintenance a) Check the inverter every 6 months or 1 year to verify
if there are damages on cables, accessories, terminals and the inverter
itself.
b) Check the inverter every 6 months to verify if the operating parameter is
normal and there is no abnormal heating or noise from the inverter.
c) Check the inverter every 6 months to confirm there is nothing covers the
inverter heat sink, if there is, shut-down the inverter and clear the heat
sink.
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Battery Maintenance As per different types battery, from the original manufacturer’s requirements on maintenance, when you carried out these works on batteries, please make sure to fully shut-down the inverter for safety consideration.
6.1.3 Troubleshooting Based On LCD Displays
Once there are any warning or fault occurred, the LED and LCD will displays
information to remind the operator, the LCD will display relevant error code
and short description.
Code
E000 E001 E002
Description
Battery communication fault 1
Battery over temperature
Low battery
LCD Display Troubleshooting
E000 E001 E002
Restart inverter, if the error still exist, please contact us
E003 E004
E005 E006 E007
Meter communication fault Battery cannot be charged
and discharged Auto test fault
RSVD LCD communication fault
E008
Parallel CAN fault
E009
The fan does not turn
E010
Multiple master
E011
Parallel AC inconsistent
E012
UPS short circuit
E013
UPS power reversed
E014
BUS short circuit
E015 E016
Parallel phase abnormal Relay fault
E017
Internal communication fault 2
31
E003 E004 E005 E006 E007 E008
E009
E010
E011
E012 E013 E014 E015 E016 E017
Restart inverter, if the error still exist, please contact us
Check the parallel CAN cables between inverters, and balance resistor is in
the right place Restart inverter, if the error still exist, please contact us
1.Check if the parallel system have two masters at less. 2.Only allow one
master, reconfigure the others to slaves.
Check the AC connection between parallel inverters 1.Check UPS L,N connection
2.Disconnect the UPS connector, if the error still exist, contact us. Restart
the inverter, if the error still exist, contact us.
Contact us
Check parallel connection and setting
Restart the inverter, if the error still exist, please contact us.
E018 E019
Internal communication fault 3
Bus voltage high
E018 E019
E020 E021 E023 E024 E025 E026 E027
E028 E029 E031
UPS connection fault
PV voltage high
Neutral fault
Both PV short circuit
Temperature over range
Internal fault Sampling inconsistent
between main and slave CPU Sync signal lost in parallel system Sync trigger
signal lost in parallel system Internal communication
fault 4
UPS CN Fault PV voltage high
Neutral fault E024
NTC Open E026 E027
E028 E029 E031
W000
Communication failure with battery
Bat Com Fault
W001 W002
W003
AFCI communication fault AFCI High
Communication failure with meter
W001 W002
Meter Com Fault
W004
Battery failure
Battery failure
W005 W007 W008 W009 W010 W011
Auto Test failure LCD communication Fault
Software mismatch Fan Stuck
Same para address Slave overflow
Auto Test failure W007 W008 W009 W010 W011
Restart the inverter, if the error still exist, please contact us. Wait for
the inverter automatically restart complete, if this error repeats for several
times, please contact us
Check UPS and AC connections Check PV input connection and If PV voltageis in
range Check neutral connection Disconnect both PV connection, if the error
still exist, contact us Check NTC Connection
Restart inverter, if the error still exist, please contact us
Check CAN cable connection
Restart inverter, if the error still exist, please contact us Check if
communication cable is right and have choose the right battery brand, if the
warning still exist, contact us Check PV input connection and restart
inverter, if the error still exist, please contact us Fix communication cable,
if the warning still exist, contact us Restart battery, if the warning still
exist, please contact us and battery manufactyre Restart inverter, if the
warning still exist, please contact us
Restart inverter, if the error still exist, contact us
Check parallel number
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W012 W013 W015 W016 W017 W018 W019 W020
W021
W022
W023 W025 W026 W027 W028 W029 W030 W031
Same para address Overtemprature Battery Reverse No AC Connection
AC voltage out of range AC frequency out of range
AC inconsistent in parallel system2 PV Isolation low
Leakage I high
DC injection high
PV short circuit Battery voltage high Battery voltage low
Battery open UPS Over load UPS voltage high
Meter Reversed UPS DCV high
W012 W013 W015
Restart inverter, if the error still exist, contact us
Check battery power connect
No AC Connection AC V Outrange AC F Outrange W019 PV Isolation low Leakage I
high
DC Injection high PV short
Check AC Connection
Check AC voltage
Check AC frequency
Check parallel connection or contact us
Restart inverter, if the error still exist, contact us
Reset model, check if safety standard switch is at the right place Check the
parallel CAN cables between inverters, and balance resistor is in the right
place
Check and fix PV input connection
Bat Volt High Bat Volt Low Battery open
Check and fix battery connection
UPS Over load W029 W030 W031
Check and adjust UPS load
Restart inverter, if the error still exist, contact us
Check meter connection
Restart inverter, if the error still exist, contact us
7. Fan replace
Please check and clean the fan regularly. The recommended period is 6 months.
Please replace the fan by following up the below diagram if there is
troublesome with the fans. Turn off the system and wait for more than 5
minutes before disassembling the machine. 1. Open the wiring cover 2. Unplug
the fan cable
33
34
3. Loosen the screws and remove them
4. Remove the fan fixing
5. Loosen the waterproof connector 6. Remove the fan and replace it 7. After
the fan is installed, follow the steps just now to push back and assemble it
back 35
PV Input data
LXP5K
Max. usable input current(A) Max. short circuit input current(A) Start input voltage(V) Startup voltage(V) Full power MPPT voltage range(V) DC nominal voltage(V) MPPT tracker DC voltage range(V) MPP operating voltage range(V) Max. power(W) Number of MPPT Inputs per MPPT
15/15/15 17/17/17 150-550
8000
AC Grid output data
Nominal Output Current(A) Max. Output Current(A) Rated voltage(V) Operating voltage range(V) Nominal power output(W) Max. apparent AC power(VA) Operating frequency(Hz) Operating frequency range(Hz)
21 24
5000 5500
Phase shift Reactive power adjust range
THDI Output inrush curent(A)
UPS AC output data
Nominal output current(A) Nominal output voltage(V) Rated output power(VA)
Operating frequency(Hz) Peak power(VA)
21
5000 60
THDV Switching Time
Efficiency
Europe Efficiency
Max. Efficiency @ PV to grid Max. Efficiency @ battery to grid MPPT Efficiency
Battery data
Type
Max. charge current(A)
110
Max. discharge current(A)
110
Nominal voltage(V)
Voltage range(V)
General Data
Integrated disconnect
Reverse polarity protection
DC switch rating for each MPPT Output over-voltage protection varistor
Output over current protection
Ground fault monitoring
Grid monitoring
Pole sensitive leakage current Monitoring unit
AFCI
RSD Dimensions(mm)
Weight(kg)
Degree of protection
Cooling concept Topology
Natural convection
Relative humidity
Altitude(m)
Noise emission(dB)
Internal consumption(W)
Display
Communication interface Standard warranty
LXP7.6K/8K
170-480 10000 31.6/33.3
37 8000 8900
33.3 8000
160/167 160/167
LXP9K
190-480 14000
LXP10K
25/15/15 34/17/17
100 140 210-480 360 100-600 60-480 16000
3 2/1/1
LXP11K
210-480 16000
37.5 41
9000 9900
41.6
46 240 180-270
10000 11000 50/60 45-55/55-65 0.99@full load -0.8~+0.8 leading Adjustable <3%
TBD
44 48
11000 11500
33.7
41.6
240
9000
10000
50/60
1.1xPn, 5min/1.25xPn, 1min/1.5xPn, 1s/2xPn, 0.1s
<3%
<20
44 11000
96% 97.5% 94% 99.9%
Lead-acid battery/Lithium battery
190
210
230
190
210
230
48
40-60
DC switch Yes Yes
Yes Yes Yes Yes Yes OPT OPT 580490240mm(22.819.39.4inch) 44kg(96.8 Ibs)
NEMA4X / IP 65 FAN
Transformer-less 0-100% <2000m <50dB <15W
Touch color screen Rs485/ Wi-Fi/ CAN
5years
LXP12K
230-480 18000
50 50 12000 13200
50 12000
250 250
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>